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O.S. .55 HZ-H Hyper Ringed Competition Helicopter Engine [OSM15630] Don Barrow/ swashnut - Rating: Verified Owner Thursday, April 15, 2010 this new 55 engine from OS is by far more powerful than the 50 hyper. 13.5 degrees pitch no worries. easy to tune runs very smooth with power to spare. all you 50 sized 3D addicts need to try this one for yourself to see what real power is all about! I have two outrage velocity 50's with this motor and also installed a flybarless system from Skukum and i can no longer bog the head. This motor seems to make its best power around 16500 rpm. i highly recommend a good quality tuned pipe to compliment this engines power curve. 1 of 1 customers found this review helpful. Back Write Review

Shopping Cart 0 items Manufacturer Info Other O.S. Engines products Bestsellers 01. O.S. .50 SX-H Hyper Ringed Competition H... 02. O.S. .55 HZ-H Hyper Ringed Competition H... 03. YS .60SR Side Exhaust Competition Helico... 04. O.S. .55 HZ-R DRS Ringed Competition Hel... 05. Thunder Tiger Pro-39H (R) Helicopter Engine 06. Thunder Tiger Redline 56H Helicopter Engine Specials Curtis Youngblood 13T Pinion Set  MAP: $5.99  Reviews this new 55 engine from OS is by far more powerful than the ..

Wednesday, June 19, 2013

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